I had the same issue, you need to turn your AA down to medium or even off. To get your AA back use ReShade (sweetfx 2.0) to enhance your game and set up SMAA like this:
/*-----------------------------------------------------------.
/ SMAA Anti-aliasing settings /
'-----------------------------------------------------------*/
#define SMAA_THRESHOLD 0.09 //[0.05 to 0.20] Edge detection threshold. If SMAA misses some edges try lowering this slightly. I prefer between 0.08 and 0.12.
#define SMAA_DEPTH_THRESHOLD 0.001 //[0.001 to 0.100] Depth edge detection threshold. Same as above but for the depth edge detection. This can go insanely low and still look good.
#define SMAA_MAX_SEARCH_STEPS 16 //[0 to 98] Determines the radius SMAA will search for aliased edges
#define SMAA_MAX_SEARCH_STEPS_DIAG 8 //[0 to 16] Determines the radius SMAA will search for diagonal aliased edges
#define SMAA_CORNER_ROUNDING 15 //[0 to 100] Determines the percent of antialiasing to apply to corners. 0 seems to affect fine text the least so it's the default.
// -- Advanced SMAA settings --
#define SMAA_EDGE_DETECTION 2 //[1|2|3] 1 = Luma edge detection, 2 = Color edge detection, 3 = Depth edge detection
#define SMAA_DIRECTX9_LINEAR_BLEND 0 //[0 or 1] Using DX9 HARDWARE? (software version doesn't matter) if so this needs to be 1 - If not, leave it at 0.
//Enable this only if you use a Geforce 7xxx series or older card, or a Radeon X1xxx series or older card.
// -- SMAA Predication settings --
#define SMAA_PREDICATION 1 //[0 or 1] Enables predication which uses BOTH the color and the depth texture for edge detection to more accurately detect edges.
#define SMAA_PREDICATION_THRESHOLD 0.001 // Threshold to be used in the depth buffer.
#define SMAA_PREDICATION_SCALE 2.0 // How much to scale the global threshold used for luma or color edge detection when using predication
#define SMAA_PREDICATION_STRENGTH 0.4 // How much to locally decrease the threshold.
// -- Debug SMAA settings --
#define SMAA_DEBUG_OUTPUT 0 //[0 to 4] 0 = Normal, 1 = edgesTex, 2 = blendTex, 3 = areaTex, 4 = searchTex - Only for troubleshooting. Users don't need to mess with this.
If you just want my whole "SweetFX_settings.txt" for swtor it's attached to this post along with a link to ReSahde, its an excellent enhancement without going overboard, over-saturating or using too much bloom.
http://reshade.me/
Download the "Alternative Standalone Packages" "SweetFX .20" and install it where "swtor.exe" is located, should be something like "C:\Program Files (x86)\Electronic Arts\BioWare\Star Wars-The Old Republic\swtor\retailclient"
The attached "SweetFX_settings.txt" is only for use with ReShade (SweetFX 2.0) and up, will not work with SweetFX 1.5.1 and will not look the same when applied to other games. Make sure any AA controlled by catalyst or nvidia software is set to "use application settings" or you will run into display issues again. You can only have so much AA under the SMAA so follow my instructions or it wont look right.
Oh and since it sounds like you have Crimson if you are encountering this error, create a profile for this game in Crimson, set "Anti-Aliasing Mode" to "Enhance Application Settings" with method: "Adaptive Multisampling". Now set "Anisotropic Filtering Mode" to "Override Application Settings" with "Filtering Level: 8x". "Texture Filtering Quality" set to "High". Turn "Surface Format Optimization" on. Turn "Shader Cache" on. Set "Tessellation Mode" to "Override Application Settings" with "Maximum Tessellation Level: 64x". "Frame Rate Target Control" is an FPS limiter, I like setting it to 60, some people like 90 or 120, some are satisfied with 30 or 40, up to you and how strong your PC is.
