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Merge pull request #531 from OFFTKP/pandra

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Improve lighting
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wheremyfoodat 2024-07-18 00:38:55 +00:00 • committed by GitHub
commit cab30494f6
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5 changed files with 432 additions and 289 deletions
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21
src/core/renderer_gl/renderer_gl.cpp
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@ -117,7 +117,10 @@ void RendererGL::initGraphicsContextInternal() {
const u32 screenTextureWidth = 400; // Top screen is 400 pixels wide, bottom is 320
const u32 screenTextureHeight = 2 * 240; // Both screens are 240 pixels tall
glGenTextures(1, &lightLUTTextureArray);
lightLUTTexture.create(256, Lights::LUT_Count, GL_R32F);
lightLUTTexture.bind();
lightLUTTexture.setMinFilter(OpenGL::Linear);
lightLUTTexture.setMagFilter(OpenGL::Linear);
auto prevTexture = OpenGL::getTex2D();
@ -348,26 +351,22 @@ void RendererGL::bindTexturesToSlots() {
}
glActiveTexture(GL_TEXTURE0 + 3);
glBindTexture(GL_TEXTURE_1D_ARRAY, lightLUTTextureArray);
lightLUTTexture.bind();
glActiveTexture(GL_TEXTURE0);
}
void RendererGL::updateLightingLUT() {
gpu.lightingLUTDirty = false;
std::array<u16, GPU::LightingLutSize> u16_lightinglut;
std::array<float, GPU::LightingLutSize> lightingLut;
for (int i = 0; i < gpu.lightingLUT.size(); i++) {
uint64_t value = gpu.lightingLUT[i] & ((1 << 12) - 1);
u16_lightinglut[i] = value * 65535 / 4095;
uint64_t value = gpu.lightingLUT[i] & 0xFFF;
lightingLut[i] = (float)(value << 4) / 65535.0f;
}
glActiveTexture(GL_TEXTURE0 + 3);
glBindTexture(GL_TEXTURE_1D_ARRAY, lightLUTTextureArray);
glTexImage2D(GL_TEXTURE_1D_ARRAY, 0, GL_R16, 256, Lights::LUT_Count, 0, GL_RED, GL_UNSIGNED_SHORT, u16_lightinglut.data());
glTexParameteri(GL_TEXTURE_1D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_1D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_1D_ARRAY, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_1D_ARRAY, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
lightLUTTexture.bind();
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 256, Lights::LUT_Count, GL_RED, GL_FLOAT, lightingLut.data());
glActiveTexture(GL_TEXTURE0);
}