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[graphics] fix ocean alpha and ocean near depth (#1236)

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* fix up some graphics bugs

* less of a hack fix
This commit is contained in:
water111
2022-03-16 21:28:02 -04:00
committed by GitHub
parent c80147119d
commit d136aec00f
4 changed files with 24 additions and 28 deletions
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game/graphics/opengl_renderer/DirectRenderer2.cpp
+6 -6
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@@ -251,35 +251,35 @@ void DirectRenderer2::setup_opengl_for_draw_mode(const Draw& draw,
// (Cs - Cd) * As + Cd
// Cs * As + (1 - As) * Cd
// s, d
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ZERO);
glBlendEquation(GL_FUNC_ADD);
} else if (draw.mode.get_alpha_blend() == DrawMode::AlphaBlend::SRC_0_SRC_DST) {
// (Cs - 0) * As + Cd
// Cs * As + (1) * Cd
// s, d
ASSERT(draw.fix == 0);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE, GL_ONE, GL_ZERO);
glBlendEquation(GL_FUNC_ADD);
} else if (draw.mode.get_alpha_blend() == DrawMode::AlphaBlend::ZERO_SRC_SRC_DST) {
// (0 - Cs) * As + Cd
// Cd - Cs * As
// s, d
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE, GL_ONE, GL_ZERO);
glBlendEquation(GL_FUNC_REVERSE_SUBTRACT);
} else if (draw.mode.get_alpha_blend() == DrawMode::AlphaBlend::SRC_DST_FIX_DST) {
// (Cs - Cd) * fix + Cd
// Cs * fix + (1 - fx) * Cd
glBlendFunc(GL_CONSTANT_ALPHA, GL_ONE_MINUS_CONSTANT_ALPHA);
glBlendFuncSeparate(GL_CONSTANT_ALPHA, GL_ONE_MINUS_CONSTANT_ALPHA, GL_ONE, GL_ZERO);
glBlendColor(0, 0, 0, draw.fix / 127.f);
glBlendEquation(GL_FUNC_ADD);
} else if (draw.mode.get_alpha_blend() == DrawMode::AlphaBlend::SRC_SRC_SRC_SRC) {
// this is very weird...
// Cs
glBlendFunc(GL_ONE, GL_ZERO);
glBlendFuncSeparate(GL_ONE, GL_ZERO, GL_ONE, GL_ZERO);
glBlendEquation(GL_FUNC_ADD);
} else if (draw.mode.get_alpha_blend() == DrawMode::AlphaBlend::SRC_0_DST_DST) {
// (Cs - 0) * Ad + Cd
glBlendFunc(GL_DST_ALPHA, GL_ONE);
glBlendFuncSeparate(GL_DST_ALPHA, GL_ONE, GL_ONE, GL_ZERO);
glBlendEquation(GL_FUNC_ADD);
color_mult = 0.5;
} else {