sercero
commented
1 year ago Hello @paroj,
I'm struggling to make RTSS work in order to test this (OGRE 13.6.2, Rendersystem: RenderSystem_GL3Plus).
I'm just testing Normal Maps for now. Here is my Material:
sampler RTSS/NormalMapSampler
{
filtering bilinear
max_anisotropy 1
mipmap_bias -1.0
}
material Material {
technique {
pass {
specular 1.0 1.0 1.0 32
texture_unit {
texture toy_box_diffuse.png
}
rtshader_system {
lighting_stage toy_box_normal.png tangent_space 0 RTSS/NormalMapSampler
}
}
}
}The textures:
And the result:
Resulting Vertex Shader:
#version 460
//-----------------------------------------------------------------------------
// PROGRAM DEPENDENCIES
//-----------------------------------------------------------------------------
#define USE_OGRE_FROM_FUTURE
#include <OgreUnifiedShader.h>
#include "FFPLib_Transform.glsl"
#include "SGXLib_PerPixelLighting.glsl"
#include "FFPLib_Texturing.glsl"
//-----------------------------------------------------------------------------
// GLOBAL PARAMETERS
//-----------------------------------------------------------------------------
layout(location = 0) uniform mat4 worldviewproj_matrix;
layout(location = 4) uniform mat3 normal_matrix;
layout(location = 7) uniform mat4 worldview_matrix;
//-----------------------------------------------------------------------------
// MAIN
//-----------------------------------------------------------------------------
IN(vec4 vertex, POSITION)
IN(vec3 normal, NORMAL)
IN(vec4 uv0, TEXCOORD0)
OUT(vec3 iTexcoord_0, 0)
OUT(vec3 iTexcoord_1, 1)
OUT(vec2 iTexcoord_2, 2)
out gl_PerVertex
{
vec4 gl_Position;
float gl_PointSize;
float gl_ClipDistance[];
};
void main(void) {
vec4 lColor_0;
vec4 lColor_1;
FFP_Transform(worldviewproj_matrix, vertex, gl_Position);
lColor_0 = vec4(1.00000,1.00000,1.00000,1.00000);
lColor_1 = vec4(0.00000,0.00000,0.00000,0.00000);
FFP_Transform(normal_matrix, normal, iTexcoord_0);
FFP_Transform(worldview_matrix, vertex, iTexcoord_1);
iTexcoord_2 = uv0.xy;
}Resulting Fragment Shader:
#version 460
//-----------------------------------------------------------------------------
// PROGRAM DEPENDENCIES
//-----------------------------------------------------------------------------
#define USE_OGRE_FROM_FUTURE
#include <OgreUnifiedShader.h>
#include "SGXLib_PerPixelLighting.glsl"
#include "FFPLib_Texturing.glsl"
//-----------------------------------------------------------------------------
// GLOBAL PARAMETERS
//-----------------------------------------------------------------------------
SAMPLER2D(gTextureSampler0, 0);
layout(location = 0) uniform vec4 derived_ambient_light_colour;
layout(location = 1) uniform vec4 surface_emissive_colour;
layout(location = 2) uniform vec4 derived_scene_colour;
layout(location = 3) uniform float surface_shininess;
layout(location = 4) uniform vec4 light_position_view_space;
layout(location = 5) uniform vec4 light_attenuation;
layout(location = 6) uniform vec4 derived_light_diffuse_colour;
layout(location = 7) uniform vec4 derived_light_specular_colour;
//-----------------------------------------------------------------------------
// MAIN
//-----------------------------------------------------------------------------
IN(vec3 iTexcoord_0, 0)
IN(vec3 iTexcoord_1, 1)
IN(vec2 iTexcoord_2, 2)
void main(void) {
vec4 lColor_0;
vec4 lColor_1;
vec4 texel_0;
lColor_0 = vec4(1.00000,1.00000,1.00000,1.00000);
lColor_1 = vec4(0.00000,0.00000,0.00000,0.00000);
gl_FragColor = lColor_0;
gl_FragColor = derived_scene_colour;
SGX_Light_Point_DiffuseSpecular(iTexcoord_0, iTexcoord_1, light_position_view_space.xyz, light_attenuation, derived_light_diffuse_colour.xyz, derived_light_specular_colour.xyz, surface_shininess, gl_FragColor.xyz, lColor_1.xyz);
lColor_0 = gl_FragColor;
texel_0 = texture2D(gTextureSampler0, iTexcoord_2);
gl_FragColor = texel_0*gl_FragColor;
gl_FragColor.xyz = gl_FragColor.xyz+lColor_1.xyz;
}
paroj
we should follow glTF and handle this case:
as we support this in Ogre: https://ogrecave.github.io/ogre/api/latest/rtss.html#autotoc_md248