From 93ffd9023f0f685c7e0910397efa0a9b59326a81 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Pedro=20J=2E=20Est=C3=A9banez?= Date: Mon, 12 Jun 2017 16:32:59 +0200 Subject: [PATCH] Add AT_LIGHT_PASS builtin to canvas shaders This one allows for complex shaders paired with a simple lighting shader to skip code that would otherwise be pointlessly (and wastefully) run during the light pass. Depending on your game (number of items and lights), this can yield some performance gain. --- drivers/gles3/shader_compiler_gles3.cpp | 1 + drivers/gles3/shaders/canvas.glsl | 6 ++++++ servers/visual/shader_types.cpp | 2 ++ 3 files changed, 9 insertions(+) diff --git a/drivers/gles3/shader_compiler_gles3.cpp b/drivers/gles3/shader_compiler_gles3.cpp index b1f7b4c9bd..3376f99112 100644 --- a/drivers/gles3/shader_compiler_gles3.cpp +++ b/drivers/gles3/shader_compiler_gles3.cpp @@ -668,6 +668,7 @@ ShaderCompilerGLES3::ShaderCompilerGLES3() { actions[VS::SHADER_CANVAS_ITEM].renames["PROJECTION_MATRIX"] = "projection_matrix"; actions[VS::SHADER_CANVAS_ITEM].renames["EXTRA_MATRIX"] == "extra_matrix"; actions[VS::SHADER_CANVAS_ITEM].renames["TIME"] = "time"; + actions[VS::SHADER_CANVAS_ITEM].renames["AT_LIGHT_PASS"] = "at_light_pass"; actions[VS::SHADER_CANVAS_ITEM].renames["COLOR"] = "color"; actions[VS::SHADER_CANVAS_ITEM].renames["NORMAL"] = "normal"; diff --git a/drivers/gles3/shaders/canvas.glsl b/drivers/gles3/shaders/canvas.glsl index 017009015e..31fea8237a 100644 --- a/drivers/gles3/shaders/canvas.glsl +++ b/drivers/gles3/shaders/canvas.glsl @@ -59,6 +59,9 @@ out vec4 local_rot; out highp vec2 pos; #endif +const bool at_light_pass = true; +#else +const bool at_light_pass = false; #endif @@ -191,6 +194,9 @@ in highp vec2 pos; #endif +const bool at_light_pass = true; +#else +const bool at_light_pass = false; #endif uniform mediump vec4 final_modulate; diff --git a/servers/visual/shader_types.cpp b/servers/visual/shader_types.cpp index e0201420fe..44aaf85581 100644 --- a/servers/visual/shader_types.cpp +++ b/servers/visual/shader_types.cpp @@ -153,6 +153,7 @@ ShaderTypes::ShaderTypes() { shader_modes[VS::SHADER_CANVAS_ITEM].functions["vertex"]["EXTRA_MATRIX"] = ShaderLanguage::TYPE_MAT4; shader_modes[VS::SHADER_CANVAS_ITEM].functions["vertex"]["TIME"] = ShaderLanguage::TYPE_FLOAT; shader_modes[VS::SHADER_CANVAS_ITEM].functions["vertex"]["PARTICLE_CUSTOM"] = ShaderLanguage::TYPE_VEC4; + shader_modes[VS::SHADER_CANVAS_ITEM].functions["vertex"]["AT_LIGHT_PASS"] = ShaderLanguage::TYPE_BOOL; shader_modes[VS::SHADER_CANVAS_ITEM].functions["fragment"]["SRC_COLOR"] = ShaderLanguage::TYPE_VEC4; shader_modes[VS::SHADER_CANVAS_ITEM].functions["fragment"]["POSITION"] = ShaderLanguage::TYPE_VEC2; @@ -166,6 +167,7 @@ ShaderTypes::ShaderTypes() { shader_modes[VS::SHADER_CANVAS_ITEM].functions["fragment"]["SCREEN_UV"] = ShaderLanguage::TYPE_VEC2; shader_modes[VS::SHADER_CANVAS_ITEM].functions["fragment"]["POINT_COORD"] = ShaderLanguage::TYPE_VEC2; shader_modes[VS::SHADER_CANVAS_ITEM].functions["fragment"]["TIME"] = ShaderLanguage::TYPE_FLOAT; + shader_modes[VS::SHADER_CANVAS_ITEM].functions["fragment"]["AT_LIGHT_PASS"] = ShaderLanguage::TYPE_BOOL; shader_modes[VS::SHADER_CANVAS_ITEM].functions["light"]["POSITION"] = ShaderLanguage::TYPE_VEC2; shader_modes[VS::SHADER_CANVAS_ITEM].functions["light"]["NORMAL"] = ShaderLanguage::TYPE_VEC3;