1 files changed, 21 insertions, 21 deletions

diff --git a/client/shaders/nodes_shader/opengl_vertex.glsl b/client/shaders/nodes_shader/opengl_vertex.glsl
index 56bff09a8..cb344f6e6 100644
--- a/client/shaders/nodes_shader/opengl_vertex.glsl
+++ b/client/shaders/nodes_shader/opengl_vertex.glsl
@@ -1,4 +1,3 @@
-uniform mat4 mWorldViewProj;
 uniform mat4 mWorld;
 
 // Color of the light emitted by the sun.
@@ -16,7 +15,8 @@ varying vec3 vPosition;
 // cameraOffset + worldPosition (for large coordinates the limits of float
 // precision must be considered).
 varying vec3 worldPosition;
-
+varying lowp vec4 varColor;
+varying mediump vec2 varTexCoord;
 varying vec3 eyeVec;
 
 // Color of the light emitted by the light sources.
@@ -81,13 +81,13 @@ float snoise(vec3 p)
 
 void main(void)
 {
-	gl_TexCoord[0] = gl_MultiTexCoord0;
+	varTexCoord = inTexCoord0.st;
 
 	float disp_x;
 	float disp_z;
 // OpenGL < 4.3 does not support continued preprocessor lines
 #if (MATERIAL_TYPE == TILE_MATERIAL_WAVING_LEAVES && ENABLE_WAVING_LEAVES) || (MATERIAL_TYPE == TILE_MATERIAL_WAVING_PLANTS && ENABLE_WAVING_PLANTS)
-	vec4 pos2 = mWorld * gl_Vertex;
+	vec4 pos2 = mWorld * inVertexPosition;
 	float tOffset = (pos2.x + pos2.y) * 0.001 + pos2.z * 0.002;
 	disp_x = (smoothTriangleWave(animationTimer * 23.0 + tOffset) +
 		smoothTriangleWave(animationTimer * 11.0 + tOffset)) * 0.4;
@@ -96,43 +96,43 @@ void main(void)
 		smoothTriangleWave(animationTimer * 13.0 + tOffset)) * 0.5;
 #endif
 
-	worldPosition = (mWorld * gl_Vertex).xyz;
+	worldPosition = (mWorld * inVertexPosition).xyz;
 
 // OpenGL < 4.3 does not support continued preprocessor lines
 #if (MATERIAL_TYPE == TILE_MATERIAL_WAVING_LIQUID_TRANSPARENT || MATERIAL_TYPE == TILE_MATERIAL_WAVING_LIQUID_OPAQUE || MATERIAL_TYPE == TILE_MATERIAL_WAVING_LIQUID_BASIC) && ENABLE_WAVING_WATER
 	// Generate waves with Perlin-type noise.
 	// The constants are calibrated such that they roughly
 	// correspond to the old sine waves.
-	vec4 pos = gl_Vertex;
+	vec4 pos = inVertexPosition;
 	vec3 wavePos = worldPosition + cameraOffset;
 	// The waves are slightly compressed along the z-axis to get
 	// wave-fronts along the x-axis.
-	wavePos.x /= WATER_WAVE_LENGTH * 3;
-	wavePos.z /= WATER_WAVE_LENGTH * 2;
-	wavePos.z += animationTimer * WATER_WAVE_SPEED * 10;
-	pos.y += (snoise(wavePos) - 1) * WATER_WAVE_HEIGHT * 5;
+	wavePos.x /= WATER_WAVE_LENGTH * 3.0;
+	wavePos.z /= WATER_WAVE_LENGTH * 2.0;
+	wavePos.z += animationTimer * WATER_WAVE_SPEED * 10.0;
+	pos.y += (snoise(wavePos) - 1.0) * WATER_WAVE_HEIGHT * 5.0;
 	gl_Position = mWorldViewProj * pos;
 #elif MATERIAL_TYPE == TILE_MATERIAL_WAVING_LEAVES && ENABLE_WAVING_LEAVES
-	vec4 pos = gl_Vertex;
+	vec4 pos = inVertexPosition;
 	pos.x += disp_x;
 	pos.y += disp_z * 0.1;
 	pos.z += disp_z;
 	gl_Position = mWorldViewProj * pos;
 #elif MATERIAL_TYPE == TILE_MATERIAL_WAVING_PLANTS && ENABLE_WAVING_PLANTS
-	vec4 pos = gl_Vertex;
-	if (gl_TexCoord[0].y < 0.05) {
+	vec4 pos = inVertexPosition;
+	if (varTexCoord.y < 0.05) {
 		pos.x += disp_x;
 		pos.z += disp_z;
 	}
 	gl_Position = mWorldViewProj * pos;
 #else
-	gl_Position = mWorldViewProj * gl_Vertex;
+	gl_Position = mWorldViewProj * inVertexPosition;
 #endif
 
 
 	vPosition = gl_Position.xyz;
 
-	eyeVec = -(gl_ModelViewMatrix * gl_Vertex).xyz;
+	eyeVec = -(mWorldView * inVertexPosition).xyz;
 
 	// Calculate color.
 	// Red, green and blue components are pre-multiplied with
@@ -141,16 +141,16 @@ void main(void)
 	// The pre-baked colors are halved to prevent overflow.
 	vec4 color;
 	// The alpha gives the ratio of sunlight in the incoming light.
-	float nightRatio = 1 - gl_Color.a;
-	color.rgb = gl_Color.rgb * (gl_Color.a * dayLight.rgb + 
-		nightRatio * artificialLight.rgb) * 2;
-	color.a = 1;
+	float nightRatio = 1.0 - inVertexColor.a;
+	color.rgb = inVertexColor.rgb * (inVertexColor.a * dayLight.rgb + 
+		nightRatio * artificialLight.rgb) * 2.0;
+	color.a = 1.0;
 
 	// Emphase blue a bit in darker places
 	// See C++ implementation in mapblock_mesh.cpp final_color_blend()
-	float brightness = (color.r + color.g + color.b) / 3;
+	float brightness = (color.r + color.g + color.b) / 3.0;
 	color.b += max(0.0, 0.021 - abs(0.2 * brightness - 0.021) +
 		0.07 * brightness);
 
-	gl_FrontColor = gl_BackColor = clamp(color, 0.0, 1.0);
+	varColor = clamp(color, 0.0, 1.0);
 }