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https://gitea.wildfiregames.com/0ad/0ad
synced 2026-06-16 21:34:08 -07:00
ab30e0d4fb
Change the shader itself so that the effects look nicer and are more consistent across settings. Rework the water mesh generation (simpler system). Fix a few issues. May work oddly with Atlas since I haven't been able to compile yet. Refs #1875 (maybe fix), Fixes #2077 (I'll assume it does), Fixes #2114 (assumption again), refs #48. This was SVN commit r15473.
792 lines
26 KiB
C++
792 lines
26 KiB
C++
/* Copyright (C) 2013 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Water settings (speed, height) and texture management
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*/
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#include "precompiled.h"
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#include "graphics/Terrain.h"
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#include "graphics/TextureManager.h"
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#include "lib/bits.h"
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#include "lib/timer.h"
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#include "lib/tex/tex.h"
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#include "lib/res/graphics/ogl_tex.h"
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#include "maths/MathUtil.h"
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#include "maths/Vector2D.h"
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#include "ps/Game.h"
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#include "ps/World.h"
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#include "renderer/WaterManager.h"
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#include "renderer/Renderer.h"
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#include "simulation2/Simulation2.h"
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#include "simulation2/components/ICmpWaterManager.h"
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#include "simulation2/components/ICmpRangeManager.h"
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///////////////////////////////////////////////////////////////////////////////////////////////
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// WaterManager implementation
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///////////////////////////////////////////////////////////////////
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// Construction/Destruction
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WaterManager::WaterManager()
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{
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// water
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m_RenderWater = false; // disabled until textures are successfully loaded
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m_WaterHeight = 5.0f;
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m_WaterColor = CColor(0.3f, 0.35f, 0.7f, 1.0f);
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m_WaterFullDepth = 5.0f;
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m_WaterMaxAlpha = 1.0f;
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m_WaterAlphaOffset = -0.05f;
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m_SWaterTrans = 0;
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m_TWaterTrans = 0;
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m_SWaterSpeed = 0.0015f;
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m_TWaterSpeed = 0.0015f;
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m_SWaterScrollCounter = 0;
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m_TWaterScrollCounter = 0;
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m_WaterCurrentTex = 0;
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m_ReflectionTexture = 0;
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m_RefractionTexture = 0;
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m_ReflectionTextureSize = 0;
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m_RefractionTextureSize = 0;
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m_WaterTexTimer = 0.0;
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m_SpecularStrength = 0.6f;
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m_Waviness = 8.0f;
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m_ReflectionTint = CColor(0.28f, 0.3f, 0.59f, 1.0f);
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m_ReflectionTintStrength = 0.0f;
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m_WaterTint = CColor(0.28f, 0.3f, 0.59f, 1.0f);
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m_Murkiness = 0.45f;
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m_RepeatPeriod = 16.0f;
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m_WaveX = NULL;
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m_WaveZ = NULL;
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m_DistanceToShore = NULL;
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m_FoamFactor = NULL;
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m_DistanceHeightmap = NULL;
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m_BlurredNormalMap = NULL;
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m_WaterUgly = false;
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m_WaterFancyEffects = false;
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m_WaterRealDepth = false;
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m_WaterRefraction = false;
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m_WaterReflection = false;
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m_WaterShadows = false;
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m_NeedsReloading = false;
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m_NeedInfoUpdate = true;
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m_VBWaves = NULL;
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m_VBWavesIndices = NULL;
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m_depthTT = 0;
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m_FancyTexture = 0;
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m_MapSize = 0;
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m_updatei0 = 0;
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m_updatej0 = 0;
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m_updatei1 = 0;
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m_updatej1 = 0;
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}
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WaterManager::~WaterManager()
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{
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// Cleanup if the caller messed up
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UnloadWaterTextures();
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delete[] m_WaveX;
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delete[] m_WaveZ;
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delete[] m_DistanceToShore;
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delete[] m_FoamFactor;
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glDeleteTextures(1, &m_depthTT);
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glDeleteTextures(1, &m_FancyTexture);
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if (m_VBWaves) g_VBMan.Release(m_VBWaves);
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if (m_VBWavesIndices) g_VBMan.Release(m_VBWavesIndices);
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}
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///////////////////////////////////////////////////////////////////
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// Progressive load of water textures
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int WaterManager::LoadWaterTextures()
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{
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// TODO: this doesn't need to be progressive-loading any more
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// (since texture loading is async now)
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// TODO: add a member variable and setter for this. (can't make this
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// a parameter because this function is called via delay-load code)
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static const wchar_t* const water_type = L"ocean";
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wchar_t pathname[PATH_MAX];
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// Load diffuse grayscale images (for non-fancy water)
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for (size_t i = 0; i < ARRAY_SIZE(m_WaterTexture); ++i)
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{
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swprintf_s(pathname, ARRAY_SIZE(pathname), L"art/textures/animated/water/default/diffuse%02d.dds", (int)i+1);
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CTextureProperties textureProps(pathname);
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textureProps.SetWrap(GL_REPEAT);
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CTexturePtr texture = g_Renderer.GetTextureManager().CreateTexture(textureProps);
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texture->Prefetch();
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m_WaterTexture[i] = texture;
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}
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// Load normalmaps (for fancy water)
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for (size_t i = 0; i < ARRAY_SIZE(m_NormalMap); ++i)
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{
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swprintf_s(pathname, ARRAY_SIZE(pathname), L"art/textures/animated/water/%ls/normal00%02d.png", water_type, (int)i+1);
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CTextureProperties textureProps(pathname);
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textureProps.SetWrap(GL_REPEAT);
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textureProps.SetMaxAnisotropy(4);
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CTexturePtr texture = g_Renderer.GetTextureManager().CreateTexture(textureProps);
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texture->Prefetch();
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m_NormalMap[i] = texture;
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}
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// Load foam (for fancy water)
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{
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CTextureProperties textureProps("art/textures/terrain/types/water/foam.png");
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textureProps.SetWrap(GL_REPEAT);
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CTexturePtr texture = g_Renderer.GetTextureManager().CreateTexture(textureProps);
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texture->Prefetch();
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m_Foam = texture;
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}
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// Load waves (for fancy water)
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{
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CTextureProperties textureProps("art/textures/terrain/types/water/shore_wave.png");
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textureProps.SetWrap(GL_REPEAT);
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CTexturePtr texture = g_Renderer.GetTextureManager().CreateTexture(textureProps);
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texture->Prefetch();
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m_Wave = texture;
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}
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// Set the size to the largest power of 2 that is <= to the window height, so
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// the reflection/refraction images will fit within the window
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// (alternative: use FBO's, which can have arbitrary size - but do we need
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// the reflection/refraction textures to be that large?)
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int size = (int)round_up_to_pow2((unsigned)g_Renderer.GetHeight());
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if(size > g_Renderer.GetHeight()) size /= 2;
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m_ReflectionTextureSize = size;
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m_RefractionTextureSize = size;
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// Create reflection texture
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glGenTextures(1, &m_ReflectionTexture);
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glBindTexture(GL_TEXTURE_2D, m_ReflectionTexture);
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glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB,
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(GLsizei)m_ReflectionTextureSize, (GLsizei)m_ReflectionTextureSize,
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0, GL_RGB, GL_UNSIGNED_BYTE, 0);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);
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// Create refraction texture
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glGenTextures(1, &m_RefractionTexture);
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glBindTexture(GL_TEXTURE_2D, m_RefractionTexture);
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glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB,
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(GLsizei)m_RefractionTextureSize, (GLsizei)m_RefractionTextureSize,
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0, GL_RGB, GL_UNSIGNED_BYTE, 0);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);
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// Enable rendering, now that we've succeeded this far
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m_RenderWater = true;
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return 0;
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}
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///////////////////////////////////////////////////////////////////
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// Unload water textures
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void WaterManager::UnloadWaterTextures()
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{
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for(size_t i = 0; i < ARRAY_SIZE(m_WaterTexture); i++)
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{
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m_WaterTexture[i].reset();
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}
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for(size_t i = 0; i < ARRAY_SIZE(m_NormalMap); i++)
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{
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m_NormalMap[i].reset();
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}
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}
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///////////////////////////////////////////////////////////////////
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// Calculate our binary heightmap from the terrain heightmap.
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void WaterManager::RecomputeDistanceHeightmap()
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{
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if (m_DistanceHeightmap == NULL)
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m_DistanceHeightmap = new u8[m_MapSize*m_MapSize];
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// Custom copy the heightmap.
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CTerrain* terrain = g_Game->GetWorld()->GetTerrain();
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u16 waterLevel = m_WaterHeight/HEIGHT_SCALE;
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u16* heightmap = terrain->GetHeightMap();
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// We will "expand" the heightmap. That is we'll set each vertex on land as "3", and "bleed" that onto neighboring pixels.
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// So 3 is "on land", 2 is "close", 1 "somewhat close" and 0 is "water".
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// This gives a basic manhattan approximation of how close to the coast we are.
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// I have a heathen fondness for ternary operators so there are some below.
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u8 level = 0;
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for (size_t z = 0; z < m_MapSize; ++z)
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{
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level = 0;
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for (size_t x = 0; x < m_MapSize; ++x)
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m_DistanceHeightmap[z*m_MapSize + x] = heightmap[z*m_MapSize + x] >= waterLevel ? level = 3
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: level > 0 ? --level : 0;
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level = 0;
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for (size_t x = m_MapSize-1; x != (size_t)-1; --x)
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{
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if (heightmap[z*m_MapSize + x] >= waterLevel)
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level = 3; // no need to set m_distanceHeightmap, it's already been done by the other loop.
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else
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{
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level > 0 ? --level : 0;
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if (level > m_DistanceHeightmap[z*m_MapSize + x])
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m_DistanceHeightmap[z*m_MapSize + x] = level;
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}
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}
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}
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for (size_t x = 0; x < m_MapSize; ++x)
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{
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level = 0;
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for (size_t z = 0; z < m_MapSize; ++z)
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{
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if (heightmap[z*m_MapSize + x] >= waterLevel)
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level = 3;
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else
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{
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level > 0 ? --level : 0;
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if (level > m_DistanceHeightmap[z*m_MapSize + x])
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m_DistanceHeightmap[z*m_MapSize + x] = level;
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}
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}
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level = 0;
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for (size_t z = m_MapSize-1; z != (size_t)-1; --z)
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{
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if (heightmap[z*m_MapSize + x] >= waterLevel)
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level = 3;
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else
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{
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level > 0 ? --level : 0;
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if (level > m_DistanceHeightmap[z*m_MapSize + x])
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m_DistanceHeightmap[z*m_MapSize + x] = level;
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}
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}
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}
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}
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///////////////////////////////////////////////////////////////////
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// Calculate The blurred normal map to get an idea of where water ought to go.
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void WaterManager::RecomputeBlurredNormalMap()
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{
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// used to cache terrain normals since otherwise we'd recalculate them a lot (I'm blurring the "normal" map).
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// this might be updated to actually cache in the terrain manager but that's not for now.
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if (m_BlurredNormalMap == NULL)
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m_BlurredNormalMap = new CVector3D[m_MapSize*m_MapSize];
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CTerrain* terrain = g_Game->GetWorld()->GetTerrain();
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// It's really slow to calculate normals so cache them first.
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CVector3D* normals = new CVector3D[m_MapSize*m_MapSize];
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// Not the edges, we won't care about them.
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float ii = 8.0f, jj = 8.0f;
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for (size_t j = 2; j < m_MapSize-2; ++j, jj += 4.0f)
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for (size_t i = 2; i < m_MapSize-2; ++i, ii += 4.0f)
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{
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CVector3D norm;
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terrain->CalcNormal(i,j,norm);
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normals[j*m_MapSize + i] = norm;
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}
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// We could be way fancier (and faster) for our blur but we probably don't need the complexity.
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// Two pass filter, nothing complicated here.
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CVector3D blurValue;
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ii = 8.0f; jj = 8.0f;
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size_t idx = 2;
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for (size_t j = 2; j < m_MapSize-2; ++j, jj += 4.0f)
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for (size_t i = 2; i < m_MapSize-2; ++i, ii += 4.0f,++idx)
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{
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blurValue = normals[idx-2];
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blurValue += normals[idx-1];
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blurValue += normals[idx];
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blurValue += normals[idx+1];
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blurValue += normals[idx+2];
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m_BlurredNormalMap[idx] = blurValue * 0.2f;
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}
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// y direction, probably slower because of cache misses but I don't see an easy way around that.
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ii = 8.0f; jj = 8.0f;
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for (size_t i = 2; i < m_MapSize-2; ++i, ii += 4.0f)
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{
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for (size_t j = 2; j < m_MapSize-2; ++j, jj += 4.0f)
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{
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blurValue = normals[(j-2)*m_MapSize + i];
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blurValue += normals[(j-1)*m_MapSize + i];
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blurValue += normals[j*m_MapSize + i];
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blurValue += normals[(j+1)*m_MapSize + i];
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blurValue += normals[(j+2)*m_MapSize + i];
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m_BlurredNormalMap[j*m_MapSize + i] = blurValue * 0.2f;
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}
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}
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}
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///////////////////////////////////////////////////////////////////
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// Create information about the terrain and wave vertices.
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void WaterManager::CreateSuperfancyInfo(CSimulation2* simulation)
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{
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if (m_VBWaves)
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{
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g_VBMan.Release(m_VBWaves);
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m_VBWaves = NULL;
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}
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if (m_VBWavesIndices)
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{
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g_VBMan.Release(m_VBWavesIndices);
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m_VBWavesIndices = NULL;
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}
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CTerrain* terrain = g_Game->GetWorld()->GetTerrain();
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CmpPtr<ICmpWaterManager> cmpWaterManager(*simulation, SYSTEM_ENTITY);
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if (!cmpWaterManager)
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return; // REALLY shouldn't happen and will most likely crash.
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// Using this to get some more optimization on circular maps
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CmpPtr<ICmpRangeManager> cmpRangeManager(*simulation, SYSTEM_ENTITY);
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if (!cmpRangeManager)
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return;
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bool circular = cmpRangeManager->GetLosCircular();
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float mSize = m_MapSize*m_MapSize;
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float halfSize = (m_MapSize/2.0);
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// Warning: this won't work with multiple water planes
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m_WaterHeight = cmpWaterManager->GetExactWaterLevel(0,0);
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// Get the square we want to work on.
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size_t Xstart = m_updatei0 >= m_MapSize ? m_MapSize-1 : m_updatei0;
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size_t Xend = m_updatei1 >= m_MapSize ? m_MapSize-1 : m_updatei1;
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size_t Zstart = m_updatej0 >= m_MapSize ? m_MapSize-1 : m_updatej0;
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size_t Zend = m_updatej1 >= m_MapSize ? m_MapSize-1 : m_updatej1;
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if (m_WaveX == NULL)
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{
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m_WaveX = new float[m_MapSize*m_MapSize];
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m_WaveZ = new float[m_MapSize*m_MapSize];
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m_DistanceToShore = new float[m_MapSize*m_MapSize];
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m_FoamFactor = new float[m_MapSize*m_MapSize];
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}
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u16* heightmap = terrain->GetHeightMap();
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// some temporary stuff for wave intensity
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// not really used too much right now.
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//u8* waveForceHQ = new u8[mapSize*mapSize];
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// used to cache terrain normals since otherwise we'd recalculate them a lot (I'm blurring the "normal" map).
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// this might be updated to actually cache in the terrain manager but that's not for now.
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CVector3D* normals = new CVector3D[m_MapSize*m_MapSize];
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// taken out of the bottom loop, blurs the normal map
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// To remove if below is reactivated
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size_t blurZstart = (int)(Zstart-4) < 0 ? 0 : Zstart - 4;
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size_t blurZend = Zend+4 >= m_MapSize ? m_MapSize-1 : Zend + 4;
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size_t blurXstart = (int)(Xstart-4) < 0 ? 0 : Xstart - 4;
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size_t blurXend = Xend+4 >= m_MapSize ? m_MapSize-1 : Xend + 4;
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float ii = blurXstart*4.0f, jj = blurXend*4.0f;
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for (size_t j = blurZstart; j < blurZend; ++j, jj += 4.0f)
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{
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for (size_t i = blurXstart; i < blurXend; ++i, ii += 4.0f)
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{
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normals[j*m_MapSize + i] = terrain->CalcExactNormal(ii,jj);
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}
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}
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// TODO: reactivate?
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/*
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// calculate wave force (not really used right now)
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// and puts into "normals" the terrain normal at that point
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// so as to avoid recalculating terrain normals too often.
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for (ssize_t i = 0; i < mapSize; ++i)
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{
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for (ssize_t j = 0; j < mapSize; ++j)
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{
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normals[j*mapSize + i] = terrain->CalcExactNormal(((float)i)*4.0f,((float)j)*4.0f);
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if (circular && (i-halfSize)*(i-halfSize)+(j-halfSize)*(j-halfSize) > mSize)
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{
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waveForceHQ[j*mapSize + i] = 255;
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continue;
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}
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u8 color = 0;
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for (int v = 0; v <= 18; v += 3){
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if (j-v >= 0 && i-v >= 0 && heightmap[(j-v)*mapSize + i-v] > waterHeightInu16)
|
|
{
|
|
if (color == 0)
|
|
color = 5;
|
|
else
|
|
color++;
|
|
}
|
|
}
|
|
waveForceHQ[j*mapSize + i] = 255 - color * 40;
|
|
}
|
|
}
|
|
*/
|
|
|
|
// Cache some data to spiral-search for the closest tile that's either coastal or water depending on what we are.
|
|
// this is insanely faster.
|
|
// I use a define because it's more readable and C++11 doesn't like this otherwise
|
|
#define m_MapSize (ssize_t)m_MapSize
|
|
ssize_t offset[24] = { -1,1,-m_MapSize,+m_MapSize, -1-m_MapSize,+1-m_MapSize,-1+m_MapSize,1+m_MapSize,
|
|
-2,2,-2*m_MapSize,2*m_MapSize,-2-m_MapSize,-2+m_MapSize,2-m_MapSize,2+m_MapSize,
|
|
-1-2*m_MapSize,+1-2*m_MapSize,-1+2*m_MapSize,1+2*m_MapSize,
|
|
-2-2*m_MapSize,2+2*m_MapSize,-2+2*m_MapSize,2-2*m_MapSize };
|
|
float dist[24] = { 1.0f, 1.0f, 1.0f, 1.0f, 1.414f, 1.414f, 1.414f, 1.414f,
|
|
2.0f, 2.0f, 2.0f, 2.0f, 2.236f, 2.236f, 2.236f, 2.236f,
|
|
2.236f, 2.236f, 2.236f, 2.236f,
|
|
2.828f, 2.828f, 2.828f, 2.828f };
|
|
#undef m_MapSize
|
|
|
|
// this creates information for waves and stores it in float arrays. PatchRData then puts it in the vertex info for speed.
|
|
CVector3D normal;
|
|
for (size_t j = Zstart; j < Zend; ++j)
|
|
{
|
|
for (size_t i = Xstart; i < Xend; ++i)
|
|
{
|
|
ssize_t register index = j*m_MapSize + i;
|
|
if (circular && (i-halfSize)*(i-halfSize)+(j-halfSize)*(j-halfSize) > mSize)
|
|
{
|
|
m_WaveX[index] = 0.0f;
|
|
m_WaveZ[index] = 0.0f;
|
|
m_DistanceToShore[index] = 100;
|
|
m_FoamFactor[index] = 0.0f;
|
|
continue;
|
|
}
|
|
float depth = m_WaterHeight - heightmap[index]*HEIGHT_SCALE;
|
|
float register distanceToShore = 10000.0f;
|
|
|
|
// calculation of the distance to the shore.
|
|
if (i > 0 && i < m_MapSize-1 && j > 0 && j < m_MapSize-1)
|
|
{
|
|
// search a 5x5 array with us in the center (do not search me)
|
|
// much faster since we spiral search and can just stop once we've found the shore.
|
|
// also everything is precomputed and we get exact results instead.
|
|
int max = 8;
|
|
if (i > 1 && i < m_MapSize-2 && j > 1 && j < m_MapSize-2)
|
|
max = 24;
|
|
|
|
for(int lookupI = 0; lookupI < max;++lookupI)
|
|
{
|
|
float hereDepth = m_WaterHeight - heightmap[index+offset[lookupI]]*HEIGHT_SCALE;
|
|
distanceToShore = hereDepth <= 0 && depth >= 0 ? dist[lookupI] : (depth < 0 ? 1 : distanceToShore);
|
|
if (distanceToShore < 5000.0f)
|
|
goto FoundShore;
|
|
}
|
|
} else {
|
|
// revert to for and if-based because I can't be bothered to special case all that.
|
|
for (int xx = -1; xx <= 1;++xx)
|
|
for (int yy = -1; yy <= 1;++yy)
|
|
{
|
|
if ((int)(i+xx) >= 0 && i+xx < m_MapSize && (int)(j+yy) >= 0 && j+yy < m_MapSize)
|
|
{
|
|
float hereDepth = m_WaterHeight - heightmap[index+xx+yy*m_MapSize]*HEIGHT_SCALE;
|
|
distanceToShore = (hereDepth < 0 && sqrt((double)xx*xx+yy*yy) < distanceToShore) ? sqrt((double)xx*xx+yy*yy) : distanceToShore;
|
|
}
|
|
}
|
|
}
|
|
|
|
// speedup with default values for land squares
|
|
if (distanceToShore > 5000.0f)
|
|
{
|
|
m_WaveX[index] = 0.0f;
|
|
m_WaveZ[index] = 0.0f;
|
|
m_DistanceToShore[index] = 100.0f;
|
|
m_FoamFactor[index] = 0.0f;
|
|
continue;
|
|
}
|
|
FoundShore:
|
|
// We'll compute the normals and the "water raise", to know about foam
|
|
// Normals are a pretty good calculation but it's slow since we normalize so much.
|
|
normal.X = normal.Y = normal.Z = 0.0f;
|
|
int waterRaise = 0;
|
|
for (size_t yy = (int(j-3) < 0 ? 0 : j-3); yy <= (j+3 < m_MapSize-1 ? 0 : j-3); yy += 2)
|
|
{
|
|
for (size_t xx = (int(i-3) < 0 ? 0 : i-3); xx <= (i+3 < m_MapSize-1 ? 0 : i+3); xx += 2) // every 2 tile is good enough.
|
|
{
|
|
normal += normals[yy*m_MapSize + xx];
|
|
waterRaise += (heightmap[index]*HEIGHT_SCALE - heightmap[yy*m_MapSize + xx]) > 0 ? (heightmap[index]*HEIGHT_SCALE - heightmap[yy*m_MapSize + xx]) : 0;
|
|
}
|
|
}
|
|
// normalizes the terrain info to avoid foam moving at too different speeds.
|
|
normal *= 0.08f; // divide by about 11.
|
|
normal[1] = 0.1f;
|
|
normal = normal.Normalized();
|
|
|
|
m_WaveX[index] = normal[0];
|
|
m_WaveZ[index] = normal[2];
|
|
// distance is /5.0 to be a [0,1] value.
|
|
|
|
m_DistanceToShore[index] = distanceToShore;
|
|
|
|
// computing the amount of foam I want
|
|
depth = clamp(depth,0.0f,10.0f);
|
|
float foamAmount = (waterRaise/255.0f) * (1.0f - depth/10.0f) /** (waveForceHQ[j*m_MapSize+i]/255.0f)*/ * (m_Waviness/8.0f);
|
|
foamAmount += clamp(m_Waviness/2.0f,0.0f,m_Waviness/2.0f)/(m_Waviness/2.0f) * clamp(m_Waviness/9.0f,0.3f,1.0f);
|
|
foamAmount *= (m_Waviness/4.0f - distanceToShore);
|
|
foamAmount = foamAmount > 1.0f ? 1.0f: (foamAmount < 0.0f ? 0.0f : foamAmount);
|
|
|
|
m_FoamFactor[index] = foamAmount;
|
|
}
|
|
}
|
|
|
|
delete[] normals;
|
|
//delete[] waveForceHQ;
|
|
|
|
// TODO: reactivate this with something that looks good and is efficient.
|
|
/*
|
|
// okay let's create the waves squares. i'll divide the map in arbitrary squares
|
|
// For each of these squares, check if waves are needed.
|
|
// If yes, look for the best positionning (in order to have a nice blending with the shore)
|
|
// Then clean-up: remove squares that are too close to each other
|
|
|
|
std::vector<CVector2D> waveSquares;
|
|
|
|
int size = 8; // I think this is the size of the squares.
|
|
for (size_t j = 0; j < m_MapSize/size; ++j)
|
|
{
|
|
for (size_t i = 0; i < m_MapSize/size; ++i)
|
|
{
|
|
int landTexel = 0;
|
|
int waterTexel = 0;
|
|
CVector3D avnormal (0.0f,0.0f,0.0f);
|
|
CVector2D landPosition(0.0f,0.0f);
|
|
CVector2D waterPosition(0.0f,0.0f);
|
|
for (int yy = 0; yy < size; ++yy)
|
|
{
|
|
for (int xx = 0; xx < size; ++xx)
|
|
{
|
|
if (terrain->GetVertexGroundLevel(i*size+xx,j*size+yy) > m_WaterHeight)
|
|
{
|
|
landTexel++;
|
|
landPosition += CVector2D(i*size+xx,j*size+yy);
|
|
}
|
|
else
|
|
{
|
|
waterPosition += CVector2D(i*size+xx,j*size+yy);
|
|
waterTexel++;
|
|
avnormal += terrain->CalcExactNormal( (i*size+xx)*4.0f,(j*size+yy)*4.0f);
|
|
}
|
|
}
|
|
}
|
|
if (landTexel < size/2)
|
|
continue;
|
|
|
|
landPosition /= landTexel;
|
|
waterPosition /= waterTexel;
|
|
|
|
avnormal[1] = 1.0f;
|
|
avnormal.Normalize();
|
|
avnormal[1] = 0.0f;
|
|
|
|
// this should help ensure that the shore is pretty flat.
|
|
if (avnormal.Length() <= 0.2f)
|
|
continue;
|
|
|
|
// To get the best position for squares, I start at the mean "ocean" position
|
|
// And step by step go to the mean "land" position. I keep the position where I change from water to land.
|
|
// If this never happens, the square is scrapped.
|
|
if (terrain->GetExactGroundLevel(waterPosition.X*4.0f,waterPosition.Y*4.0f) > m_WaterHeight)
|
|
continue;
|
|
|
|
CVector2D squarePos(-1,-1);
|
|
for (u8 i = 0; i < 40; i++)
|
|
{
|
|
squarePos = landPosition * (i/40.0f) + waterPosition * (1.0f-(i/40.0f));
|
|
if (terrain->GetExactGroundLevel(squarePos.X*4.0f,squarePos.Y*4.0f) > m_WaterHeight)
|
|
break;
|
|
}
|
|
if (squarePos.X == -1)
|
|
continue;
|
|
|
|
u8 enter = 1;
|
|
// okaaaaaay. Got a square. Check for proximity.
|
|
for (unsigned long i = 0; i < waveSquares.size(); i++)
|
|
{
|
|
if ( CVector2D(waveSquares[i]-squarePos).LengthSquared() < 80) {
|
|
enter = 0;
|
|
break;
|
|
}
|
|
}
|
|
if (enter == 1)
|
|
waveSquares.push_back(squarePos);
|
|
}
|
|
}
|
|
|
|
// Actually create the waves' meshes.
|
|
std::vector<SWavesVertex> waves_vertex_data;
|
|
std::vector<GLushort> waves_indices;
|
|
|
|
// loop through each square point. Look in the square around it, calculate the normal
|
|
// create the square.
|
|
for (unsigned long i = 0; i < waveSquares.size(); i++)
|
|
{
|
|
CVector2D pos(waveSquares[i]);
|
|
|
|
CVector3D avgnorm(0.0f,0.0f,0.0f);
|
|
for (int yy = -size/2; yy < size/2; ++yy)
|
|
{
|
|
for (int xx = -size/2; xx < size/2; ++xx)
|
|
{
|
|
avgnorm += terrain->CalcExactNormal((pos.X+xx)*4.0f,(pos.Y+yy)*4.0f);
|
|
}
|
|
}
|
|
avgnorm[1] = 0.1f;
|
|
// okay crank out a square.
|
|
// we have the direction of the square. We'll get the perpendicular vector too
|
|
CVector2D perp(-avgnorm[2],avgnorm[0]);
|
|
perp = perp.Normalized();
|
|
avgnorm = avgnorm.Normalized();
|
|
|
|
GLushort index[4];
|
|
SWavesVertex vertex[4];
|
|
vertex[0].m_Position = CVector3D(pos.X + perp.X*(size/2.2f) - avgnorm[0]*1.0f, 0.0f,pos.Y + perp.Y*(size/2.2f) - avgnorm[2]*1.0f);
|
|
vertex[0].m_Position *= 4.0f;
|
|
vertex[0].m_Position.Y = m_WaterHeight + 1.0f;
|
|
vertex[0].m_UV[1] = 1;
|
|
vertex[0].m_UV[0] = 0;
|
|
index[0] = waves_vertex_data.size();
|
|
waves_vertex_data.push_back(vertex[0]);
|
|
|
|
vertex[1].m_Position = CVector3D(pos.X - perp.X*(size/2.2f) - avgnorm[0]*1.0f, 0.0f,pos.Y - perp.Y*(size/2.2f) - avgnorm[2]*1.0f);
|
|
vertex[1].m_Position *= 4.0f;
|
|
vertex[1].m_Position.Y = m_WaterHeight + 1.0f;
|
|
vertex[1].m_UV[1] = 1;
|
|
vertex[1].m_UV[0] = 1;
|
|
index[1] = waves_vertex_data.size();
|
|
waves_vertex_data.push_back(vertex[1]);
|
|
|
|
vertex[3].m_Position = CVector3D(pos.X + perp.X*(size/2.2f) + avgnorm[0]*(size/1.5f), 0.0f,pos.Y + perp.Y*(size/2.2f) + avgnorm[2]*(size/1.5f));
|
|
vertex[3].m_Position *= 4.0f;
|
|
vertex[3].m_Position.Y = m_WaterHeight + 1.0f;
|
|
vertex[3].m_UV[1] = 0;
|
|
vertex[3].m_UV[0] = 0;
|
|
index[3] = waves_vertex_data.size();
|
|
waves_vertex_data.push_back(vertex[3]);
|
|
|
|
vertex[2].m_Position = CVector3D(pos.X - perp.X*(size/2.2f) + avgnorm[0]*(size/1.5f), 0.0f,pos.Y - perp.Y*(size/2.2f) + avgnorm[2]*(size/1.5f));
|
|
vertex[2].m_Position *= 4.0f;
|
|
vertex[2].m_Position.Y = m_WaterHeight + 1.0f;
|
|
vertex[2].m_UV[1] = 0;
|
|
vertex[2].m_UV[0] = 1;
|
|
index[2] = waves_vertex_data.size();
|
|
waves_vertex_data.push_back(vertex[2]);
|
|
|
|
waves_indices.push_back(index[0]);
|
|
waves_indices.push_back(index[1]);
|
|
waves_indices.push_back(index[2]);
|
|
|
|
waves_indices.push_back(index[2]);
|
|
waves_indices.push_back(index[3]);
|
|
waves_indices.push_back(index[0]);
|
|
}
|
|
|
|
// no vertex buffers if no data generated
|
|
if (waves_indices.empty())
|
|
return;
|
|
|
|
// waves
|
|
// allocate vertex buffer
|
|
m_VBWaves = g_VBMan.Allocate(sizeof(SWavesVertex), waves_vertex_data.size(), GL_STATIC_DRAW, GL_ARRAY_BUFFER);
|
|
m_VBWaves->m_Owner->UpdateChunkVertices(m_VBWaves, &waves_vertex_data[0]);
|
|
|
|
// Construct indices buffer
|
|
m_VBWavesIndices = g_VBMan.Allocate(sizeof(GLushort), waves_indices.size(), GL_STATIC_DRAW, GL_ELEMENT_ARRAY_BUFFER);
|
|
m_VBWavesIndices->m_Owner->UpdateChunkVertices(m_VBWavesIndices, &waves_indices[0]);
|
|
*/
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
// TODO: This will always recalculate for now
|
|
void WaterManager::SetMapSize(size_t size)
|
|
{
|
|
// TODO: Im' blindly trusting the user here.
|
|
m_MapSize = size;
|
|
m_NeedInfoUpdate = true;
|
|
m_updatei0 = 0;
|
|
m_updatei1 = size;
|
|
m_updatej0 = 0;
|
|
m_updatej1 = size;
|
|
|
|
SAFE_ARRAY_DELETE(m_DistanceHeightmap);
|
|
SAFE_ARRAY_DELETE(m_BlurredNormalMap);
|
|
SAFE_ARRAY_DELETE(m_WaveX);
|
|
SAFE_ARRAY_DELETE(m_WaveZ);
|
|
SAFE_ARRAY_DELETE(m_DistanceToShore);
|
|
SAFE_ARRAY_DELETE(m_FoamFactor);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
// This will set the bools properly
|
|
void WaterManager::UpdateQuality()
|
|
{
|
|
if (g_Renderer.GetOptionBool(CRenderer::OPT_WATERUGLY) != m_WaterUgly) {
|
|
m_WaterUgly = g_Renderer.GetOptionBool(CRenderer::OPT_WATERUGLY);
|
|
m_NeedsReloading = true;
|
|
}
|
|
if (g_Renderer.GetOptionBool(CRenderer::OPT_WATERFANCYEFFECTS) != m_WaterFancyEffects) {
|
|
m_WaterFancyEffects = g_Renderer.GetOptionBool(CRenderer::OPT_WATERFANCYEFFECTS);
|
|
m_NeedsReloading = true;
|
|
}
|
|
if (g_Renderer.GetOptionBool(CRenderer::OPT_WATERREALDEPTH) != m_WaterRealDepth) {
|
|
m_WaterRealDepth = g_Renderer.GetOptionBool(CRenderer::OPT_WATERREALDEPTH);
|
|
m_NeedsReloading = true;
|
|
}
|
|
if (g_Renderer.GetOptionBool(CRenderer::OPT_WATERREFRACTION) != m_WaterRefraction) {
|
|
m_WaterRefraction = g_Renderer.GetOptionBool(CRenderer::OPT_WATERREFRACTION);
|
|
m_NeedsReloading = true;
|
|
}
|
|
if (g_Renderer.GetOptionBool(CRenderer::OPT_WATERREFLECTION) != m_WaterReflection) {
|
|
m_WaterReflection = g_Renderer.GetOptionBool(CRenderer::OPT_WATERREFLECTION);
|
|
m_NeedsReloading = true;
|
|
}
|
|
if (g_Renderer.GetOptionBool(CRenderer::OPT_SHADOWSONWATER) != m_WaterShadows) {
|
|
m_WaterShadows = g_Renderer.GetOptionBool(CRenderer::OPT_SHADOWSONWATER);
|
|
m_NeedsReloading = true;
|
|
}
|
|
}
|
|
|
|
bool WaterManager::WillRenderFancyWater()
|
|
{
|
|
if (!g_Renderer.GetCapabilities().m_FragmentShader)
|
|
return false;
|
|
if (!m_RenderWater || m_WaterUgly)
|
|
return false;
|
|
return true;
|
|
}
|