From 425decdf7e9284d15aa726e3ae96b9942fb0e3ea Mon Sep 17 00:00:00 2001
From: IronClawTrem <louie.nutman@gmail.com>
Date: Sun, 16 Feb 2020 03:40:06 +0000
Subject: create tremded branch

---
 src/renderergl2/glsl/dlight_vp.glsl | 92 +++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 src/renderergl2/glsl/dlight_vp.glsl

(limited to 'src/renderergl2/glsl/dlight_vp.glsl')

diff --git a/src/renderergl2/glsl/dlight_vp.glsl b/src/renderergl2/glsl/dlight_vp.glsl
new file mode 100644
index 0000000..c326bd7
--- /dev/null
+++ b/src/renderergl2/glsl/dlight_vp.glsl
@@ -0,0 +1,92 @@
+attribute vec3 attr_Position;
+attribute vec4 attr_TexCoord0;
+attribute vec3 attr_Normal;
+
+uniform vec4   u_DlightInfo;
+
+#if defined(USE_DEFORM_VERTEXES)
+uniform int    u_DeformGen;
+uniform float  u_DeformParams[5];
+uniform float  u_Time;
+#endif
+
+uniform vec4   u_Color;
+uniform mat4   u_ModelViewProjectionMatrix;
+
+varying vec2   var_Tex1;
+varying vec4   var_Color;
+
+#if defined(USE_DEFORM_VERTEXES)
+vec3 DeformPosition(const vec3 pos, const vec3 normal, const vec2 st)
+{
+	if (u_DeformGen == 0)
+	{
+		return pos;
+	}
+
+	float base =      u_DeformParams[0];
+	float amplitude = u_DeformParams[1];
+	float phase =     u_DeformParams[2];
+	float frequency = u_DeformParams[3];
+	float spread =    u_DeformParams[4];
+
+	if (u_DeformGen == DGEN_BULGE)
+	{
+		phase *= st.x;
+	}
+	else // if (u_DeformGen <= DGEN_WAVE_INVERSE_SAWTOOTH)
+	{
+		phase += dot(pos.xyz, vec3(spread));
+	}
+
+	float value = phase + (u_Time * frequency);
+	float func;
+
+	if (u_DeformGen == DGEN_WAVE_SIN)
+	{
+		func = sin(value * 2.0 * M_PI);
+	}
+	else if (u_DeformGen == DGEN_WAVE_SQUARE)
+	{
+		func = sign(0.5 - fract(value));
+	}
+	else if (u_DeformGen == DGEN_WAVE_TRIANGLE)
+	{
+		func = abs(fract(value + 0.75) - 0.5) * 4.0 - 1.0;
+	}
+	else if (u_DeformGen == DGEN_WAVE_SAWTOOTH)
+	{
+		func = fract(value);
+	}
+	else if (u_DeformGen == DGEN_WAVE_INVERSE_SAWTOOTH)
+	{
+		func = (1.0 - fract(value));
+	}
+	else // if (u_DeformGen == DGEN_BULGE)
+	{
+		func = sin(value);
+	}
+
+	return pos + normal * (base + func * amplitude);
+}
+#endif
+
+void main()
+{
+	vec3 position = attr_Position;
+	vec3 normal = attr_Normal;
+
+#if defined(USE_DEFORM_VERTEXES)
+	position = DeformPosition(position, normal, attr_TexCoord0.st);
+#endif
+
+	gl_Position = u_ModelViewProjectionMatrix * vec4(position, 1.0);
+		
+	vec3 dist = u_DlightInfo.xyz - position;
+
+	var_Tex1 = dist.xy * u_DlightInfo.a + vec2(0.5);
+	float dlightmod = step(0.0, dot(dist, normal));
+	dlightmod *= clamp(2.0 * (1.0 - abs(dist.z) * u_DlightInfo.a), 0.0, 1.0);
+	
+	var_Color = u_Color * dlightmod;
+}
-- 
cgit