bool VolShader::emit_f(string& s)
{
ostringstream z;
if (poly_)
{
z << ShaderProgram::glsl_version_;
z << FRG_SHADER_CODE_CORE_PROFILE;
//output
s = z.str();
return false;
}
//version info
z << ShaderProgram::glsl_version_;
z << VOL_INPUTS;
if (fog_)
z << VOL_INPUTS_FOG;
z << VOL_OUTPUTS;
//the common uniforms
z << VOL_UNIFORMS_COMMON;
//2d map location
if (peel_ != 0 || color_mode_ == 2)
z << VOL_UNIFORMS_2DMAP_LOC;
//color modes
switch (color_mode_)
{
case 0://normal
z << VOL_UNIFORMS_SIN_COLOR;
break;
case 1://colormap
z << VOL_UNIFORMS_COLORMAP;
break;
case 2://depth map
z << VOL_UNIFORMS_SIN_COLOR;
z << VOL_UNIFORMS_DEPTHMAP;
break;
}
// add uniform for depth peeling
if (peel_ != 0)
z << VOL_UNIFORMS_DP;
// add uniforms for clipping
if (clip_)
{
z << VOL_UNIFORMS_CLIP;
z << VOL_UNIFORMS_MATRICES;
}
// add uniforms for masking
switch (mask_)
{
case 1:
case 2:
z << VOL_UNIFORMS_MASK;
break;
case 3:
z << VOL_UNIFORMS_LABEL;
break;
case 4:
z << VOL_UNIFORMS_MASK;
z << VOL_UNIFORMS_LABEL;
break;
}
//uniform for fog
if (fog_)
z << VOL_UNIFORMS_FOG_LOC;
//functions
if (clip_)
z << VOL_CLIP_FUNC;
//the common head
z << VOL_HEAD;
if (peel_ != 0 || color_mode_ == 2)
z << VOL_HEAD_2DMAP_LOC;
//head for depth peeling
if (peel_ == 1)//draw volume before 15
z << VOL_HEAD_DP_1;
else if (peel_ == 2 || peel_ == 5)//draw volume after 15
z << VOL_HEAD_DP_2;
else if (peel_ == 3 || peel_ == 4)//draw volume after 14 and before 15
z << VOL_HEAD_DP_3;
//head for clipping planes
if (clip_)
z << VOL_HEAD_CLIP_FUNC;
// Set up light variables and input parameters.
z << VOL_HEAD_LIT;
// Set up fog variables and input parameters.
if (fog_)
z << VOL_HEAD_FOG;
//bodies
if (shading_)
{
//no gradient volume, need to calculate in real-time
z << VOL_DATA_VOLUME_LOOKUP;
if (hiqual_)
z << VOL_GRAD_COMPUTE_HI;
else
z << VOL_GRAD_COMPUTE_LO;
z << VOL_BODY_SHADING;
if (channels_ == 1)
z << VOL_COMPUTED_GM_LOOKUP;
else
z << VOL_TEXTURE_GM_LOOKUP;
switch (color_mode_)
{
case 0://normal
if (solid_)
z << VOL_TRANSFER_FUNCTION_SIN_COLOR_SOLID;
else
z << VOL_TRANSFER_FUNCTION_SIN_COLOR;
break;
case 1://colormap
if (solid_)
{
z << VOL_TRANSFER_FUNCTION_COLORMAP_SOLID;
z << get_colormap_proj();
z << get_colormap_code();
z << VOL_COMMON_TRANSFER_FUNCTION_CALC;
z << VOL_TRANSFER_FUNCTION_COLORMAP_SOLID_RESULT;
}
else
{
z << VOL_TRANSFER_FUNCTION_COLORMAP;
z << get_colormap_proj();
z << get_colormap_code();
z << VOL_COMMON_TRANSFER_FUNCTION_CALC;
z << VOL_TRANSFER_FUNCTION_COLORMAP_RESULT;
}
break;
}
z << VOL_COLOR_OUTPUT;
}
else // No shading
{
z << VOL_DATA_VOLUME_LOOKUP;
if (channels_ == 1)
{
// Compute Gradient magnitude and use it.
if (hiqual_)
z << VOL_GRAD_COMPUTE_HI;
else
z << VOL_GRAD_COMPUTE_LO;
z << VOL_COMPUTED_GM_LOOKUP;
}
else
{
z << VOL_TEXTURE_GM_LOOKUP;
}
if (mip_ && colormap_proj_)
{
z << VOL_TRANSFER_FUNCTION_MIP_COLOR_PROJ;
z << get_colormap_proj();
z << VOL_TRANSFER_FUNCTION_MIP_COLOR_PROJ_RESULT;
z << VOL_RASTER_BLEND_SOLID;
}
else
{
switch (color_mode_)
{
case 0://normal
if (solid_)
z << VOL_TRANSFER_FUNCTION_SIN_COLOR_SOLID;
else
z << VOL_TRANSFER_FUNCTION_SIN_COLOR;
break;
case 1://colormap
if (solid_)
{
z << VOL_TRANSFER_FUNCTION_COLORMAP_SOLID;
z << get_colormap_proj();
z << get_colormap_code();
z << VOL_COMMON_TRANSFER_FUNCTION_CALC;
z << VOL_TRANSFER_FUNCTION_COLORMAP_SOLID_RESULT;
}
else
{
z << VOL_TRANSFER_FUNCTION_COLORMAP;
z << get_colormap_proj();
z << get_colormap_code();
z << VOL_COMMON_TRANSFER_FUNCTION_CALC;
z << VOL_TRANSFER_FUNCTION_COLORMAP_RESULT;
}
break;
case 2://depth map
z << VOL_TRANSFER_FUNCTION_DEPTHMAP;
break;
}
}
}
if (!(mip_ && colormap_proj_))
{
// fog
if (fog_)
{
z << VOL_FOG_BODY;
}
//final blend
switch (mask_)
{
case 0:
if (color_mode_ == 2)
z << VOL_RASTER_BLEND_DMAP;
else
{
if (solid_)
z << VOL_RASTER_BLEND_SOLID;
else
z << VOL_RASTER_BLEND;
}
break;
case 1:
if (color_mode_ == 2)
z << VOL_RASTER_BLEND_MASK_DMAP;
else
{
if (solid_)
z << VOL_RASTER_BLEND_MASK_SOLID;
else
z << VOL_RASTER_BLEND_MASK;
}
break;
case 2:
if (color_mode_ == 2)
z << VOL_RASTER_BLEND_NOMASK_DMAP;
else
{
if (solid_)
z << VOL_RASTER_BLEND_NOMASK_SOLID;
else
z << VOL_RASTER_BLEND_NOMASK;
}
break;
case 3:
z << VOL_RASTER_BLEND_LABEL;
break;
case 4:
z << VOL_RASTER_BLEND_LABEL_MASK;
break;
}
}
//the common tail
z << VOL_TAIL;
//output
s = z.str();
return false;
}
bool ImgShader::emit_f(string& s)
{
ostringstream z;
z << ShaderProgram::glsl_version_;
switch (type_)
{
case IMG_SHDR_DRAW_GEOMETRY:
z << IMG_FRG_CODE_DRAW_GEOMETRY;
break;
case IMG_SHDR_DRAW_GEOMETRY_COLOR3:
z << IMG_FRG_CODE_DRAW_GEOMETRY_COLOR3;
break;
case IMG_SHDR_DRAW_GEOMETRY_COLOR4:
z << IMG_FRG_CODE_DRAW_GEOMETRY_COLOR4;
break;
case IMG_SHADER_TEXTURE_LOOKUP:
z << IMG_SHADER_CODE_TEXTURE_LOOKUP;
break;
case IMG_SHDR_BRIGHTNESS_CONTRAST:
z << IMG_SHADER_CODE_BRIGHTNESS_CONTRAST;
break;
case IMG_SHDR_BRIGHTNESS_CONTRAST_HDR:
z << IMG_SHADER_CODE_BRIGHTNESS_CONTRAST_HDR;
break;
case IMG_SHDR_GRADIENT_MAP:
z << IMG_SHADER_CODE_GRADIENT_MAP;
z << get_colormap_code();
z << IMG_SHADER_CODE_GRADIENT_MAP_RESULT;
break;
case IMG_SHDR_FILTER_BLUR:
z << IMG_SHADER_CODE_FILTER_BLUR;
break;
case IMG_SHDR_FILTER_MAX:
z << IMG_SHADER_CODE_FILTER_MAX;
break;
case IMG_SHDR_FILTER_SHARPEN:
z << IMG_SHADER_CODE_FILTER_SHARPEN;
break;
case IMG_SHDR_DEPTH_TO_OUTLINES:
z << IMG_SHADER_CODE_DEPTH_TO_OUTLINES;
break;
case IMG_SHDR_DEPTH_TO_GRADIENT:
z << IMG_SHADER_CODE_DEPTH_TO_GRADIENT;
break;
case IMG_SHDR_GRADIENT_TO_SHADOW:
z << IMG_SHADER_CODE_GRADIENT_TO_SHADOW;
break;
case IMG_SHDR_GRADIENT_TO_SHADOW_MESH:
z << IMG_SHADER_CODE_GRADIENT_TO_SHADOW_MESH;
break;
case IMG_SHDR_BLEND_BRIGHT_BACKGROUND:
z << IMG_SHADER_CODE_BLEND_BRIGHT_BACKGROUND;
break;
case IMG_SHDR_BLEND_BRIGHT_BACKGROUND_HDR:
z << IMG_SHADER_CODE_BLEND_BRIGHT_BACKGROUND_HDR;
break;
case IMG_SHDR_PAINT:
z << PAINT_SHADER_CODE;
break;
default:
z << IMG_SHADER_CODE_TEXTURE_LOOKUP;
}
s = z.str();
//std::cerr << s << std::endl;
return false;
}
