Explicitly use floating point numbers in the our shaders

We need to be explicit about using floating point numbers in our shaders
for compatibility with mobile GLES drivers.

2 files changed, 8 insertions, 8 deletions

diff --git a/scene/resources/material.cpp b/scene/resources/material.cpp
index 9a52e9a6bb..78bc9bd15b 100644
--- a/scene/resources/material.cpp
+++ b/scene/resources/material.cpp
@@ -607,17 +607,17 @@ void SpatialMaterial::_update_shader() {
 			code += "\tMODELVIEW_MATRIX = INV_CAMERA_MATRIX * mat4(CAMERA_MATRIX[0],CAMERA_MATRIX[1],CAMERA_MATRIX[2],WORLD_MATRIX[3]);\n";
 
 			if (flags[FLAG_BILLBOARD_KEEP_SCALE]) {
-				code += "\tMODELVIEW_MATRIX = MODELVIEW_MATRIX * mat4(vec4(length(WORLD_MATRIX[0].xyz),0,0,0),vec4(0,length(WORLD_MATRIX[1].xyz),0,0),vec4(0,0,length(WORLD_MATRIX[2].xyz),0),vec4(0,0,0,1));\n";
+				code += "\tMODELVIEW_MATRIX = MODELVIEW_MATRIX * mat4(vec4(length(WORLD_MATRIX[0].xyz), 0.0, 0.0, 0.0),vec4(0.0, length(WORLD_MATRIX[1].xyz), 0.0, 0.0),vec4(0.0, 0.0, length(WORLD_MATRIX[2].xyz), 0.0),vec4(0.0, 0.0, 0.0, 1.0));\n";
 			}
 		} break;
 		case BILLBOARD_FIXED_Y: {
 
-			code += "\tMODELVIEW_MATRIX = INV_CAMERA_MATRIX * mat4(CAMERA_MATRIX[0],WORLD_MATRIX[1],vec4(normalize(cross(CAMERA_MATRIX[0].xyz,WORLD_MATRIX[1].xyz)),0.0),WORLD_MATRIX[3]);\n";
+			code += "\tMODELVIEW_MATRIX = INV_CAMERA_MATRIX * mat4(CAMERA_MATRIX[0],WORLD_MATRIX[1],vec4(normalize(cross(CAMERA_MATRIX[0].xyz,WORLD_MATRIX[1].xyz)), 0.0),WORLD_MATRIX[3]);\n";
 
 			if (flags[FLAG_BILLBOARD_KEEP_SCALE]) {
-				code += "\tMODELVIEW_MATRIX = MODELVIEW_MATRIX * mat4(vec4(length(WORLD_MATRIX[0].xyz),0,0,0),vec4(0,1,0,0),vec4(0,0,length(WORLD_MATRIX[2].xyz),0),vec4(0,0,0,1));\n";
+				code += "\tMODELVIEW_MATRIX = MODELVIEW_MATRIX * mat4(vec4(length(WORLD_MATRIX[0].xyz), 0.0, 0.0, 0.0),vec4(0.0, 1.0, 0.0, 0.0),vec4(0.0, 0.0, length(WORLD_MATRIX[2].xyz), 0.0), vec4(0.0, 0.0, 0.0, 1.0));\n";
 			} else {
-				code += "\tMODELVIEW_MATRIX = MODELVIEW_MATRIX * mat4(vec4(1,0,0,0),vec4(0,1.0/length(WORLD_MATRIX[1].xyz),0,0),vec4(0,0,1,0),vec4(0,0,0,1));\n";
+				code += "\tMODELVIEW_MATRIX = MODELVIEW_MATRIX * mat4(vec4(1.0, 0.0, 0.0, 0.0),vec4(0.0, 1.0/length(WORLD_MATRIX[1].xyz), 0.0, 0.0), vec4(0.0, 0.0, 1.0, 0.0),vec4(0.0, 0.0, 0.0 ,1.0));\n";
 			}
 		} break;
 		case BILLBOARD_PARTICLES: {
@@ -625,7 +625,7 @@ void SpatialMaterial::_update_shader() {
 			//make billboard
 			code += "\tmat4 mat_world = mat4(normalize(CAMERA_MATRIX[0])*length(WORLD_MATRIX[0]),normalize(CAMERA_MATRIX[1])*length(WORLD_MATRIX[0]),normalize(CAMERA_MATRIX[2])*length(WORLD_MATRIX[2]),WORLD_MATRIX[3]);\n";
 			//rotate by rotation
-			code += "\tmat_world = mat_world * mat4( vec4(cos(INSTANCE_CUSTOM.x),-sin(INSTANCE_CUSTOM.x),0.0,0.0), vec4(sin(INSTANCE_CUSTOM.x),cos(INSTANCE_CUSTOM.x),0.0,0.0),vec4(0.0,0.0,1.0,0.0),vec4(0.0,0.0,0.0,1.0));\n";
+			code += "\tmat_world = mat_world * mat4( vec4(cos(INSTANCE_CUSTOM.x),-sin(INSTANCE_CUSTOM.x), 0.0, 0.0), vec4(sin(INSTANCE_CUSTOM.x), cos(INSTANCE_CUSTOM.x), 0.0, 0.0),vec4(0.0, 0.0, 1.0, 0.0),vec4(0.0, 0.0, 0.0, 1.0));\n";
 			//set modelview
 			code += "\tMODELVIEW_MATRIX = INV_CAMERA_MATRIX * mat_world;\n";
 
diff --git a/scene/resources/particles_material.cpp b/scene/resources/particles_material.cpp
index 59fde7787e..ef67e6ea80 100644
--- a/scene/resources/particles_material.cpp
+++ b/scene/resources/particles_material.cpp
@@ -311,8 +311,8 @@ void ParticlesMaterial::_update_shader() {
 		//initiate velocity spread in 3D
 		code += "		float angle1_rad = rand_from_seed_m1_p1(alt_seed) * spread_rad;\n";
 		code += "		float angle2_rad = rand_from_seed_m1_p1(alt_seed) * spread_rad * (1.0 - flatness);\n";
-		code += "		vec3 direction_xz = vec3(sin(angle1_rad), 0, cos(angle1_rad));\n";
-		code += "		vec3 direction_yz = vec3(0, sin(angle2_rad), cos(angle2_rad));\n";
+		code += "		vec3 direction_xz = vec3(sin(angle1_rad), 0.0, cos(angle1_rad));\n";
+		code += "		vec3 direction_yz = vec3(0.0, sin(angle2_rad), cos(angle2_rad));\n";
 		code += "		direction_yz.z = direction_yz.z / max(0.0001,sqrt(abs(direction_yz.z))); // better uniform distribution\n";
 		code += "		vec3 direction = vec3(direction_xz.x * direction_yz.z, direction_yz.y, direction_xz.z * direction_yz.z);\n";
 		code += "		direction = normalize(direction);\n";
@@ -347,7 +347,7 @@ void ParticlesMaterial::_update_shader() {
 					code += "		VELOCITY.xy = rotm * VELOCITY.xy;\n";
 				} else {
 					code += "		vec3 normal = texelFetch(emission_texture_normal, emission_tex_ofs, 0).xyz;\n";
-					code += "		vec3 v0 = abs(normal.z) < 0.999 ? vec3(0.0, 0.0, 1.0) : vec3(0, 1.0, 0.0);\n";
+					code += "		vec3 v0 = abs(normal.z) < 0.999 ? vec3(0.0, 0.0, 1.0) : vec3(0.0, 1.0, 0.0);\n";
 					code += "		vec3 tangent = normalize(cross(v0, normal));\n";
 					code += "		vec3 bitangent = normalize(cross(tangent, normal));\n";
 					code += "		VELOCITY = mat3(tangent, bitangent, normal) * VELOCITY;\n";